@Kimmer
When GM was interviewed he said that since their move in 2018, the had lost touch. They hadn't spoken with the girls etc...
It seems like there had been something that adversely impacted their relationship as a family. Possibly out of sight, out of mind?
AM also said he called and left voicemails over the years with BM (??) and never heard back.
Lastly, AM said they thought the girls hadn't reached because they were concerned their numbers were blocked. They found out that wasn't the case. Why would they think that?